1-) Java - DİNAMİK 2 TANE BUTTON OLUŞTURUP ARTTIR DİYİNCE LABELİ ARTTIRAN UYGULAMA

public class dB extends javax.swing.JFrame {

public dB() {

initComponents();

butonPanel.removeAll();//butonPanel demek attığımız panelin ismi?.

GridLayout grdLayout = new GridLayout(2, 2);

butonPanel.setLayout(grdLayout);

JButton btn = new JButton();

btn.setText("ARTIR");

btn.setName("btn" + "artir");

butonPanel.add(btn);

btn.addActionListener(new dB.artir());

JButton btn1 = new JButton();

btn1.setText("AZALT");

btn1.setName("btn" + "azalt");

butonPanel.add(btn1);

btn1.addActionListener(new dB.azalt());

grdLayout = null;

butonPanel.revalidate(); }

class artir implements ActionListener {

public void actionPerformed(ActionEvent e) {

JButton b = (JButton) e.getSource();

int sayi=Integer.parseInt(jLabel1.getText());

sayi++;

jLabel1.setText(String.valueOf(sayi)); } }

class azalt implements ActionListener {

public void actionPerformed(ActionEvent e) {

JButton b = (JButton) e.getSource();

int sayi=Integer.parseInt(jLabel1.getText());

sayi--;

jLabel1.setText(String.valueOf(sayi)); } }